Phakoemulsification is a technique for removing cataracts developed by Charles Kelman, MD in New York.  His technique was difficult to master because one could easily destroy the cornea while removing the cataract.


Richard Kratz, MD in California altered the technique so the cataract could be removed behind the iris and away from the cornea.


Dr. Tennant modified the procedure developed by Dr. Kratz to section the cataract into small segments to more easily remove it.  In 1990, he published the textbook called Fun With Phako.

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